PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J5266Handle,socket Wrench

The Stanley Works Dba Stanley Proto · NSN 5120-01-504-7921 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-504-7921 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-504-7921. Primary manufacturer part number: J5266.
Features
  • Handle,socket Wrench — FSC 5120
  • Material: STEEL OVERALL
  • Drive End Shape: SQUARE SINGLE END EXTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Specification/standard Data: 0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Style Designator: HINGED
Applications
  • Applications requiring Steel Overall construction
General Description

The Handle,socket Wrench, cataloged under National Stock Number 5120-01-504-7921, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-504-7921
Primary Part NumberJ5266
Item NameHandle,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusACTIVE
MaterialSTEEL OVERALL
Drive End ShapeSQUARE SINGLE END EXTERNAL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Specification/standard Data0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Style DesignatorHINGED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-004-7241 INTERCHANGEABLE
Bearing,sleeve
5310-00-275-197413399 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Chrysler Realty Company Llc Dba Daimler Chrysler
4210-00-289-4328 INTERCHANGEABLE
Bracket,fire Extinguisher
2940-00-505-6714 INTERCHANGEABLE
Filter,fluid
5305-00-515-7174 INTERCHANGEABLE
Screw,machine
5935-00-539-28545266 INTERCHANGEABLE
Connector,plug,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
1010-00-718-0782 INTERCHANGEABLE
Guard,term,safety S
5330-00-894-9314956174C INTERCHANGEABLE
Packing with Retainer
Dresser, Llc
6680-01-079-1785 INTERCHANGEABLE
Indicator,sight,liquid
5950-01-319-726503-99-41 INTERCHANGEABLE
Transformer,pulse
Microwave Engineering Corporation
Cross-Reference Index
Part NumberManufacturer
J5266 PRIMARY The Stanley Works Dba Stanley Proto (USA)
J5266 Henchman Products Pty Ltd (AUS)
1FX33 W.w. Grainger, Inc. Div Government Sales Division (USA)
J5266 Henchman Group Pty Ltd the Trustee for Henchman Unit Trust (AUS)
AS4283 Sae International Dba Sae International (USA)
5266 The Stanley Works Dba Stanley Proto (USA)
AS4283 TY1CL1 General Services Administration Federal Supply Service (USA)
Related Parts
3120-00-004-7241INTERCHANGEABLE
BEARING,SLEEVE
5310-00-275-1974INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
13399
4210-00-289-4328INTERCHANGEABLE
BRACKET,FIRE EXTINGUISHER
2940-00-505-6714INTERCHANGEABLE
FILTER,FLUID
5305-00-515-7174INTERCHANGEABLE
SCREW,MACHINE
5935-00-539-2854INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5266
1010-00-718-0782INTERCHANGEABLE
GUARD,TERM,SAFETY S
5330-00-894-9314INTERCHANGEABLE
PACKING WITH RETAINER
956174C
6680-01-079-1785INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
5950-01-319-7265INTERCHANGEABLE
TRANSFORMER,PULSE
03-99-41
2920-01-337-7266INTERCHANGEABLE
REGULATOR,ENGINE GENERATOR
5-266
7530-01-406-7284INTERCHANGEABLE
LABEL
5266

Frequently Asked Questions

What is NSN 5120-01-504-7921?

NSN 5120-01-504-7921 is a Handle,socket Wrench, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-504-7921?

NSN 5120-01-504-7921 has 7 cross-referenced part numbers: J5266 (The Stanley Works Dba Stanley Proto), J5266 (Henchman Products Pty Ltd), 1FX33 (W.w. Grainger, Inc. Div Government Sales Division), J5266 (Henchman Group Pty Ltd the Trustee for Henchman Unit Trust), AS4283 (Sae International Dba Sae International) and 2 more.

What NSN replaces 5120-01-504-7921?

There are 12 known substitutes for 5120-01-504-7921: 3120-00-004-7241, 5310-00-275-1974, 4210-00-289-4328 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J5266?

Key specifications for J5266: Material: STEEL OVERALL; Drive End Shape: SQUARE SINGLE END EXTERNAL; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS; Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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